changing lighting cycle on/off time

[tadaa]

Right now my plants are on 12/12 and have been flowering for 2.5 weeks, the light comes on at 6am and turns off at 6pm. For safety issues(apartment), I want to switch it so the light comes on at 6pm, and turns OFF at 6am. Will this screw up my plants?

Right now it's 5pm, so it's gonna go off in an hour and it won't come on again till 6pm tomorrow night(if i do the switch)which would be 18 hours of darkness.

tadaa Reviewed by tadaa on 03-14-2006. changing lighting cycle on/off time Right now my plants are on 12/12 and have been flowering for 2.5 weeks, the light comes on at 6am and turns off at 6pm. For safety issues(apartment), I want to switch it so the light comes on at 6pm, and turns OFF at 6am. Will this screw up my plants? Right now it's 5pm, so it's gonna go off in an hour and it won't come on again till 6pm tomorrow night(if i do the switch)which would be 18 hours of darkness. Rating: 5

[friendowl]

you run the risk of hermie
but if you got security concerns
than you gotta do it.
get some penetrator and reverse
just in case.

[Zandor]

The extra dark period is fine and you can switch your light cycle with no harm to your plants. Just watch the temperature and don't let it get to hot or you run a greater risk of hermies like friendowl said.

[karmaxul]

I beg to differ Zandor, a plant measures where it is in the budding stage by the length of darkness it recieves not the length of light, if that is what you said. Just leave your light on for 24 hours. The plant will not go hermie on you. The worst thing that will happen is you will get a couple two female seeds. Hormones are released at night which is what regulates budding.
I prefer my lights on at night too due to elevated temps during the day.
One love
c

[tadaa]

Thanks guys, I'm gonna stick with my current lighting and just wait till next grow.

[Zandor]

I beg to differ Zandor, a plant measures where it is in the budding stage by the length of darkness it recieves not the length of light, if that is what you said. Just leave your light on for 24 hours. The plant will not go hermie on you. The worst thing that will happen is you will get a couple two female seeds. Hormones are released at night which is what regulates budding.
I prefer my lights on at night too due to elevated temps during the day.
One love
c

It sounds like you have been reading Clarks book? Don't most of his findings have been proven to be wrong about this plant. Way to many general conclusions and mixing up plant bonty more then once.

tadaa - It takes days for light or even dark to affect the plant so in 12 hours you will do nothing to harm the plant.

[karmaxul]

Zandor- Clarks Book? As the seasons progress the length of night becomes longer. During the dark period plants produce hormones. The hormones steadily increase every night as do the night lengths. Once the hormones reach that magic level meiosis begins and the plant begins to produce spores (sex organs). It has to do with the night getting longer and not the days getting shorter. The axis of the earth also produces a slighty different light spectrum which is why there is more red light during a morning sunrise in autumn. Also has to do with the harvest moon usually orange in color around October. Regardless doubling the length of dark will increase the hormone levels in the plant to levels that they are not used to getting causing alot of stress on the biochemistry of the plant wether you can see it or not. Increasing the length of light will use up the hormones which happens every day during the light period but after they are gone no further biochemical changes take place and at the start of the next night the process begins again without the excess hormonal build up creating less stress. Either way it is done you may not run into any problems like Zandor said, but there is less stress to the plant to give 24 hours light as apposed to dark. If you regenerate it you may wish to cause the least amount of stress, but because the plant will be dead in a couple months you may want to save a dollar on the electrical bill, unless you plan on regenerating some ladies to produce stouter clones of the genetics.

One love
c

[smoknjoe]

If you had to change the light cycle, I would suggest prolonging the day period instead of the night period. A long night would stimulate flowering, while a long day would keep the plant in vegetate mode and allow for extra photosynthesis.

Peace